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arXiv 1707.01409quant-ph
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色散和有耗非均匀介质中等离子体激元的哈密顿量和朗之万噪声描述的等价性

Equivalence between the Hamiltonian and Langevin noise description of plasmon-polaritons in a dispersive and lossy inhomogeneous medium

Aurelien Drezet

摘要:

我们证明了存在于非均匀、有耗和色散介质中的量子电动力学的两种不同描述之间的基本联系,这两种描述基于极化激元的Huttner-Barnett形式[B]。Huttner和S. M. Barnett,Phys.Rev. A 46,4306(1992)]或使用波动电流的朗之万噪声方法[T. Gruner和D.- G. Welsch,Phys.Rev.A53,1818(1996)]。在这项工作中,我们证明了这两种描述的实际等价性,通过引入有效光子态的概念与一些特定的噪声电流分布。我们研究这些结果的计算和解释的量子观测,如波动,相关性和卡西米尔力的影响。

英文摘要:

We demonstrate the fundamental links existing between two different descriptions of quantum electrodynamics in inhomogeneous, lossy and dispersive dielectric media which are based either on the Huttner-Barnett formalism for polaritons [B. Huttner and S. M. Barnett, Phys.Rev. A 46, 4306 (1992)] or the Langevin noise approach using fluctuating currents [T. Gruner and D.-G. Welsch, Phys.Rev.A 53, 1818 (1996)]. In this work we demonstrate the practical equivalence of the two descriptions by introducing the concept of effective photon state associated with some specific noise current distribution. We study the impact of these results on the calculation and interpretation of quantum observables such as fluctuations, correlations, and Casimir forces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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